Projectile for rock-breakers.



M. QUBNNBR. PROJEGTILE POB. ROCK BREAKERS. APPLIGATION rum JAN. 24. 19m

1,076,148. Patented Oct. 21, 1913.

2 SHEETS-SHEET 1.

M. QUENNBR. PROJEGTILE FOP. ROCK BREAKERS.

APPLICATION FILED JAN. 24, 1911.

Patented Oct. 21, 1913.

2 SHEETSVSHEET 2.

B uenne:

UNlTED STATES rlirnnfr orrion.

MITTS QUENNER, OF NOG-ALES, ARZONA, ASSIGNOR TO QUENNER DRY CRUSHER COMPANY, OF DOUGLAS, ARIZONA, A CORPORATION OF ARIZONA.

PROJECTILE FOR ROCKBREAKERS.

Specification of Letters Patent.

Patented Oct. 21, 191 3.

To all whom it may concern Nogales, in the county of Santa Cruz and State, of Arizona, have invented certain new and useful Improvements in Projeetiles for Rook-Breakers, of which the following is a specification., reference beingT had therein to the accompanying drawing. I

This invention relates to improvements in projectiles and has for its object. the provision of a projectile primarily designed for use in the breaking of roel: and similar substances, especially in connection with my improved method of and apparatus for shat teringri'ock through the medium oi the iinpact. blows of a plurality of the orojectile;A

against the material being broken while the latter is in a free or floating state.

Desirable characteristics of the. invention reside in the reversibility ot the projectile `whereby the greatest possible use of the saine may be obtained 'with correspondingly decreased expense; the formation of the faces of the projectile to obtain maximum etliciency in its shattering operation. and the general contour and formation ot the pro` jectile whereby the same is friven substantial Weight and reinforcement in the. line ot' its impact movementv to prevent.- breakage and also increase the severity ot the .impact blow.

The, invention also comprehends means for adjusting the project-ile upon a. shaft in fixed operative relation to other projectiles; and the combination of the projectiles thus assembled Details in the construction and orrangement ot the several parts of' the device will be apparent from the 'specific description hereinafter contained when read in connection with the accompanying drawings torming part hereoitx and wherein. a. convenient Be it known that l` l\'lrr'rs Qnnsnnn, a l citizen of the United States, residing atl Referring more specifically to the drawings wherein like reference characters designate corresponding parts in the se'veral views. A represents the grizzly which is eonvenieniljv of a rotary cylindrical formation. Il the projectile carrying shaft rota table through the medium of any suitable means` C the collars for securing the projeetile to the shaft in a progressively advancingv relation, I) the flexible intermediate connections, in this instance chains, and E the breaker heads or projectiles.

Preferably the projectiles are mounted on .the shaft in close association.y but in a gradually progressing series, so that they assume a spiral relation when in operation to renon the rocli or other material being,r treated and at. the same time tend to feed the same lengthwise of the grizzly.l -To maintain the projectiles in this position and to obtain an even spacing thereof one face of each of the selnringlf collars is provided with a recess F. while the opposite face thereof has a lug G so that the adjoining collars are interloclied and hy the gradually progressing ar-` rangement of the complementary lugs and recesses a spiral arrangement of the projectiles insured.

The projectiles are formed of steel of thel shape especially illustrated in Figs. 4 and 5. The upper end of the. projectile is relatively upper edgev h for the reception of the outer lint; of tlie""clrain and 'to facilitate free and 'easy movement of the projectile on said link as the. .projectile is swung outwardly incident tocentrifngal force under the aO-'f tuation of the machine.

J represents approximately radially disposed angular forward and rear edges 0f the projectile. these edges being,` designed to ve the, shattering blow to the rock and rendering the projectile reversible, as is 0bl vious l s seen in Fig. 6, the general cross-sectional contonrloi" the projectile is rectangular; the side enlargements K reinforcmg the impactingI edges and giving Weight to the projectile.. In addition to the metal andA consequent Weight thns acquired, however, l substantially enlarge or elongate the ends of the projectiles intermediate of the forward and rear edges thereof, as shown at"L to gire a very substantial backing of' metal tint. and perforated. as atI H, Wlith a rounded der successive and rapid impacting blows 'nll and resultant weight and force to the impact blow delivered by the edge of the projertle. This formation of the projectile from AIiront to rear gives the same an approximately bell-shape.

From an inspection of Fig. 1 of the drawings il will be seen that by my special formation of' the projectiles in so tar as the widening of the same longitudinajly of the mai-bine coneerned. and the arrangement of the. projefiftiles relative each other, the projectiles are laterally overlapped to a certain extent endwise of the machine so that the projectiles constitute in effectcontinuous breaking means longitudinally of the machine. Thus material when introduced into the machine will find it impossible to escape `the action of the projectiles.

lVhile I have herein disclosed one Specific embodiment of the invention, itwill be apparent to those skilled in the art that the same is capable of embodiment in other forms and devices than that, shown.

As diatinguished from the projectile enlarged in the line of its travel or approximately bell shaped.y as claimed herein. the broader idea of a projectile having angular, longitudinally disposed, relativeljY sharp forward and rear edgrea. with the laterally projecting enlargements is disclosed and claimed in .ny co-'pending application Serial No. 5%?379. filed March 1.910. rIherelfore such broader proposition will not be claimed herein.

I claim:

l. ln a machine of the character described, a shaft. a plurality of projectiles, lexible connecting elements. and connections between said elements and the projectiles and the shaft, in combination with means for rotating the shaft and the projectiles, the projectiles being enlarged in the line ot their travel and having an angular approximately radially disposed relatively sharp forward edge7 substantially as and for the purpose described.

2. In a machine of the character described, a shaft, a plurality of projectiles, and flexible connections between the projectiles and the shaft. in' combination with means for rotating the shaft and the projectiles, the projectiles being enlarged in the line of their travel and having an angular approximately radially disposed relatively sharp forward edge and also enlarged laterally of said edge to reinforce the same.

3. A projectile or hammer for a crushing or shattering mill of approximately bell shape'from front to rear, the forward and rear portions being of angular formation to provide relatively sharp longitudinally disposed edges.

4. A projectile or hammer for a crushing or shattering mill having an enlarged outer end, an integral flattened inner end perforated to constitute a projecting eye and having the upper wall of the perforation curved, substantially as and for the purpose described.

'In testimony whereof I aiiix my signature in presence of two Witnesses.

MITTS QUENNER.

lVitnesses'.

D. A. RIGHARDsoN, FRANK W. DoAN. 

